All the '55/56 wagon models (including the Courier sedan delivery) have the same license plate bracket assembly. So the one on my Courier is exactly the same as yours. Mine was in pretty good shape, but I took it all apart and dunked all the parts in a rust dissolving solution. It is best to press the light bulb socket out of the housing first so it can be properly cleaned for electrical continuity (body ground). I did not use the original wiring, spring and phenolic washer as they were pretty rough. You can buy those complete with a new socket at any chain auto parts store. Just make sure you get one for a bulb with single element. You can either press in the new assembly in your old housing or just use the wiring components in your old socket. But if you use you old socket, it is best to re-plate it using a zinc electroplating kit. That is what I did and I also plated the housing that the socket goes into, separately. If you don't have a zinc or cadmium plating, they will rust very quickly and eventually the light bulb will fail to operate due to corrosion. As added protection, I also painted the socket and housing after pressing the socket back in place using Ford Argent silver paint. If you do this, be sure to wad up a little bit of Kleenex and stuff it down inside the socket before spraying the silver paint. Then after paint is dry, remove the Kleenex and install your wiring components and bulb.
